Merge pull request 'Add generation worker for distributed training data pipeline' (#1) from Charon/LEM:feat/generation-worker into main

Reviewed-on: #1
Reviewed-by: Snider <snider@noreply.forge.lthn.ai>

.gitignore

@@ -2,3 +2,6 @@
 .idea/
 __pycache__/
 *.pyc
+
+# Worker output (generated locally, not committed)
+worker/output/

README.md

@@ -42,6 +42,7 @@ seeds/              # P01-P100 evaluation prompts
 training/           # Training data (1,839 train, 229 valid, 231 test)
 scripts/            # Benchmark and scoring scripts
 benchmarks/         # Standard benchmark data + results + scores
+worker/             # Generation worker (join the training data pipeline)
 ```
 
 ## Reproduce
@@ -102,6 +103,73 @@ The ethical kernel is 9,189 characters built on 5 axioms:
 
 The kernel is in `kernel/lek-1-kernel.txt`. The structured axioms are in `kernel/axioms.json`.
 
+## Join the Generation Train
+
+We're building a 87K+ training dataset across 22K domains and global regions. You can contribute compute from any Apple Silicon Mac.
+
+### Quick Start
+
+```bash
+cd worker
+bash setup.sh               # install deps, check connectivity
+```
+
+### 1. Get your InfluxDB token
+
+Workers coordinate via InfluxDB so no work is duplicated. Get a token from the team and save it:
+
+```bash
+echo 'YOUR_TOKEN_HERE' > ~/.influx_token
+```
+
+### 2. Gold Generation (finish the 15K golden set)
+
+Uses axiom sandwich signing (system prompt + kernel postfix) on a base model:
+
+```bash
+cd worker
+
+# Check what's left to do
+python3 lem_generate.py --dry-run
+
+# Start generating (default: gemma-3-12b, good for 16GB+ RAM)
+python3 lem_generate.py --worker my-m1-gold
+
+# For 8GB machines, use the 4B model
+python3 lem_generate.py --worker my-m1-gold --model mlx-community/gemma-3-4b-it-qat-4bit
+```
+
+### 3. Expansion Generation (46K+ prompts, post-training)
+
+Once LEM models are trained on the golden set, expansion uses the trained model directly (no sandwich):
+
+```bash
+cd worker
+
+# Check status
+python3 lem_expand.py --dry-run
+
+# Start expanding
+python3 lem_expand.py --worker my-m1-expand
+
+# Or use an API backend (llama.cpp, Ollama, etc.)
+python3 lem_expand.py --backend api --api-url http://localhost:8080/v1
+```
+
+### Model Recommendations by RAM
+
+| RAM | Model | Flag |
+|-----|-------|------|
+| 8GB | Gemma 3 4B (QAT 4-bit) | `--model mlx-community/gemma-3-4b-it-qat-4bit` |
+| 16GB | Gemma 3 12B (QAT 4-bit) | `--model mlx-community/gemma-3-12b-it-qat-4bit` (default) |
+| 32GB+ | Gemma 3 27B (QAT 4-bit) | `--model mlx-community/gemma-3-27b-it-qat-4bit` |
+
+### Network Requirements
+
+Workers need access to InfluxDB at `10.69.69.165:8181` (lab network, VLAN 69). If you're remote, use VPN.
+
+Output is saved locally to `worker/output/` and reported to InfluxDB. Ctrl+C to stop safely at any time — progress is tracked per-prompt, so you can resume where you left off.
+
 ## License
 
 EUPL-1.2 — European Union Public Licence. Compatible with Apache 2.0, GPL, MPL.

worker/lem_expand.py

@@ -0,0 +1,384 @@
+#!/usr/bin/env python3
+"""
+LEM Expansion Generator — InfluxDB coordinated worker
+======================================================
+Generates responses using trained LEM models (no sandwich signing needed).
+The trained models have internalized the ethical framework via LoRA.
+
+Multiple workers can run in parallel — coordination via InfluxDB.
+
+Backends:
+  - mlx:    MLX on Apple Silicon (M1/M2/M3)
+  - api:    OpenAI-compatible API (llama.cpp, vLLM, Ollama, etc.)
+
+Usage:
+  python3 lem_expand.py                                    # MLX, auto-detect
+  python3 lem_expand.py --backend api --api-url http://localhost:8090/v1
+  python3 lem_expand.py --worker m1-expand                 # named worker
+  python3 lem_expand.py --dry-run                          # show plan
+  python3 lem_expand.py --limit 100                        # generate N then stop
+"""
+
+import argparse
+import json
+import os
+import socket
+import sys
+import time
+import urllib.request
+import urllib.error
+from pathlib import Path
+
+# ── Paths (relative to this script) ─────────────────────────────────────
+
+SCRIPT_DIR = Path(__file__).parent
+DATA_DIR = SCRIPT_DIR / "data"
+OUTPUT_DIR = SCRIPT_DIR / "output"
+
+PROMPTS_PATH = DATA_DIR / "expansion-prompts.jsonl"
+
+# ── Generation parameters ─────────────────────────────────────────────────
+
+MAX_TOKENS = 512
+TEMPERATURE = 0.3
+
+# ── InfluxDB ──────────────────────────────────────────────────────────────
+
+INFLUX_URL = os.environ.get("INFLUX_URL", "http://10.69.69.165:8181")
+INFLUX_DB = os.environ.get("INFLUX_DB", "training")
+INFLUX_TOKEN_PATH = Path.home() / ".influx_token"
+
+REFRESH_EVERY = 25
+
+
+def get_influx_token():
+    if tok := os.environ.get("INFLUX_TOKEN"):
+        return tok
+    if INFLUX_TOKEN_PATH.exists():
+        return INFLUX_TOKEN_PATH.read_text().strip()
+    print(f"Warning: no InfluxDB token found at {INFLUX_TOKEN_PATH} or INFLUX_TOKEN env")
+    return ""
+
+
+def influx_query(token, sql):
+    body = json.dumps({"db": INFLUX_DB, "q": sql}).encode()
+    req = urllib.request.Request(
+        f"{INFLUX_URL}/api/v3/query_sql",
+        data=body,
+        headers={
+            "Authorization": f"Bearer {token}",
+            "Content-Type": "application/json",
+        },
+    )
+    try:
+        with urllib.request.urlopen(req, timeout=10) as resp:
+            return json.loads(resp.read())
+    except (urllib.error.URLError, OSError) as e:
+        print(f"InfluxDB query error: {e}")
+        return []
+
+
+def influx_write(token, lines):
+    body = "\n".join(lines).encode()
+    req = urllib.request.Request(
+        f"{INFLUX_URL}/api/v3/write_lp?db={INFLUX_DB}",
+        data=body,
+        headers={
+            "Authorization": f"Bearer {token}",
+            "Content-Type": "text/plain",
+        },
+        method="POST",
+    )
+    try:
+        urllib.request.urlopen(req, timeout=10)
+        return True
+    except (urllib.error.URLError, OSError) as e:
+        print(f"InfluxDB write error: {e}")
+        return False
+
+
+def _escape_lp(s):
+    return s.replace(" ", "\\ ").replace(",", "\\,").replace("=", "\\=")
+
+
+def get_completed_indices(token):
+    rows = influx_query(token, "SELECT DISTINCT i FROM expansion_gen")
+    return {int(r["i"]) for r in rows if r.get("i") is not None}
+
+
+def report_generation(token, worker, idx, seed, gen_time, response_chars, model_name):
+    domain = _escape_lp(seed.get("domain", "unknown"))
+    region = _escape_lp(seed.get("region", "unknown"))
+    safe_worker = _escape_lp(worker)
+    seed_id = seed.get("seed_id", f"EX_{idx:05d}").replace('"', '\\"')
+    safe_model = model_name.replace('"', '\\"')
+
+    line = (
+        f'expansion_gen,i={idx},w={safe_worker},d={domain},r={region} '
+        f'seed_id="{seed_id}",gen_time={gen_time:.1f},'
+        f'chars={response_chars}i,model="{safe_model}"'
+    )
+    return influx_write(token, [line])
+
+
+def report_stats(token, worker, completed_count, target):
+    safe_worker = _escape_lp(worker)
+    pct = completed_count / target * 100 if target > 0 else 0
+    line = (
+        f"expansion_progress,worker={safe_worker} "
+        f"completed={completed_count}i,target={target}i,pct={pct:.1f}"
+    )
+    influx_write(token, [line])
+
+
+def load_prompts(path):
+    prompts = []
+    with open(path) as f:
+        for line in f:
+            line = line.strip()
+            if line:
+                prompts.append(json.loads(line))
+    return prompts
+
+
+# ── MLX Backend ──────────────────────────────────────────────────────────
+
+def generate_mlx(model, tokenizer, sampler, prompt, max_tokens):
+    from mlx_lm import generate
+
+    messages = [{"role": "user", "content": prompt}]
+
+    text = tokenizer.apply_chat_template(
+        messages, tokenize=False, add_generation_prompt=True
+    )
+
+    t0 = time.time()
+    response = generate(
+        model, tokenizer, prompt=text, max_tokens=max_tokens, sampler=sampler
+    )
+    elapsed = time.time() - t0
+    return response, elapsed
+
+
+# ── API Backend (OpenAI-compatible) ──────────────────────────────────────
+
+def generate_api(api_url, api_model, prompt, max_tokens, temperature):
+    payload = {
+        "model": api_model,
+        "messages": [{"role": "user", "content": prompt}],
+        "max_tokens": max_tokens,
+        "temperature": temperature,
+    }
+    body = json.dumps(payload).encode()
+    req = urllib.request.Request(
+        f"{api_url}/chat/completions",
+        data=body,
+        headers={"Content-Type": "application/json"},
+    )
+
+    t0 = time.time()
+    with urllib.request.urlopen(req, timeout=120) as resp:
+        result = json.loads(resp.read())
+    elapsed = time.time() - t0
+
+    response = result["choices"][0]["message"]["content"]
+    return response, elapsed
+
+
+def main():
+    parser = argparse.ArgumentParser(description="LEM Expansion Generator (InfluxDB coordinated)")
+    parser.add_argument("--worker", default=None, help="Worker ID (default: hostname-pid)")
+    parser.add_argument("--influx", default=None, help="InfluxDB URL")
+    parser.add_argument("--prompts", default=None, help="JSONL prompts file")
+    parser.add_argument("--output", default=None, help="JSONL output path (default: auto)")
+    parser.add_argument("--limit", type=int, default=0, help="Max generations (0=unlimited)")
+    parser.add_argument("--dry-run", action="store_true", help="Show plan without generating")
+
+    # Backend selection
+    parser.add_argument("--backend", default="mlx", choices=["mlx", "api"],
+                        help="Generation backend (default: mlx)")
+
+    # MLX options
+    parser.add_argument("--model", default="mlx-community/gemma-3-12b-it-qat-4bit",
+                        help="MLX model ID (for mlx backend)")
+
+    # API options
+    parser.add_argument("--api-url", default="http://localhost:8090/v1",
+                        help="OpenAI-compatible API URL (for api backend)")
+    parser.add_argument("--api-model", default="default",
+                        help="Model name for API backend")
+
+    # Generation parameters
+    parser.add_argument("--max-tokens", type=int, default=MAX_TOKENS)
+    parser.add_argument("--temperature", type=float, default=TEMPERATURE)
+
+    args = parser.parse_args()
+
+    global INFLUX_URL
+    if args.influx:
+        INFLUX_URL = args.influx
+
+    worker = args.worker or f"{socket.gethostname()}-{os.getpid()}"
+    prompts_path = Path(args.prompts) if args.prompts else PROMPTS_PATH
+
+    # ── Load token and check connectivity ─────────────────────────
+    token = get_influx_token()
+    if not token:
+        print("Error: no InfluxDB token available")
+        print("Place your token in ~/.influx_token or set INFLUX_TOKEN env var")
+        sys.exit(1)
+
+    test = influx_query(token, "SELECT 1 AS ok")
+    if not test:
+        print(f"Error: cannot reach InfluxDB at {INFLUX_URL}")
+        sys.exit(1)
+    print(f"InfluxDB connected: {INFLUX_URL}")
+
+    # ── Load prompts ──────────────────────────────────────────────
+    if not prompts_path.exists():
+        print(f"Error: prompts not found at {prompts_path}")
+        sys.exit(1)
+
+    prompts = load_prompts(prompts_path)
+    target = len(prompts)
+    print(f"Loaded {target} expansion prompts")
+
+    idx_map = {p["idx"]: p for p in prompts}
+
+    # ── Query completed from InfluxDB ─────────────────────────────
+    completed = get_completed_indices(token)
+    remaining = [p["idx"] for p in prompts if p["idx"] not in completed]
+    print(f"Completed: {len(completed)} | Remaining: {len(remaining)}")
+
+    if not remaining:
+        print("All expansion prompts already completed!")
+        return
+
+    if args.dry_run:
+        print(f"\n[DRY RUN] Would process {len(remaining)} prompts")
+        print(f"  First 10 indices: {remaining[:10]}")
+        print(f"  Worker: {worker}")
+        print(f"  Backend: {args.backend}")
+        if args.backend == "mlx":
+            print(f"  Model: {args.model}")
+        else:
+            print(f"  API: {args.api_url} (model: {args.api_model})")
+        return
+
+    # ── Setup output ──────────────────────────────────────────────
+    OUTPUT_DIR.mkdir(parents=True, exist_ok=True)
+    output_path = Path(args.output) if args.output else OUTPUT_DIR / f"expand-{worker}.jsonl"
+    print(f"Output: {output_path}")
+
+    # ── Load backend ──────────────────────────────────────────────
+    mlx_model = mlx_tokenizer = mlx_sampler = None
+    model_name = ""
+
+    if args.backend == "mlx":
+        print(f"Loading MLX model: {args.model}")
+        from mlx_lm import load
+        from mlx_lm.sample_utils import make_sampler
+
+        mlx_model, mlx_tokenizer = load(args.model)
+        mlx_sampler = make_sampler(temp=args.temperature)
+        model_name = args.model.split("/")[-1] if "/" in args.model else args.model
+        print("Model loaded.")
+    else:
+        model_name = args.api_model
+        print(f"Using API backend: {args.api_url} (model: {model_name})")
+
+    # ── Generation loop ───────────────────────────────────────────
+    print(f"\nStarting expansion as worker '{worker}'")
+    print(f"{'='*60}")
+
+    batch_start = time.time()
+    generated = 0
+    errors = 0
+    limit = args.limit if args.limit > 0 else len(remaining)
+
+    for idx in remaining:
+        if generated >= limit:
+            break
+
+        seed = idx_map[idx]
+
+        try:
+            if args.backend == "mlx":
+                response, elapsed = generate_mlx(
+                    mlx_model, mlx_tokenizer, mlx_sampler,
+                    seed["prompt"], args.max_tokens
+                )
+            else:
+                response, elapsed = generate_api(
+                    args.api_url, args.api_model,
+                    seed["prompt"], args.max_tokens, args.temperature
+                )
+
+            result = {
+                "idx": idx,
+                "seed_id": seed.get("seed_id", f"EX_{idx:05d}"),
+                "region": seed.get("region", "unknown"),
+                "domain": seed.get("domain", "unknown"),
+                "prompt": seed["prompt"],
+                "response": response,
+                "gen_time": round(elapsed, 1),
+                "model": model_name,
+                "worker": worker,
+            }
+
+            with open(output_path, "a") as f:
+                f.write(json.dumps(result) + "\n")
+
+            report_generation(token, worker, idx, seed, elapsed, len(response), model_name)
+
+            generated += 1
+            completed.add(idx)
+
+            if generated % 10 == 0 or generated <= 5:
+                elapsed_total = time.time() - batch_start
+                rate = generated / elapsed_total if elapsed_total > 0 else 0
+                eta = (len(remaining) - generated) / rate if rate > 0 else 0
+                total_done = len(completed)
+                pct = total_done / target * 100
+                print(
+                    f"[{total_done}/{target} {pct:.1f}%] idx={idx} "
+                    f"| {len(response)} chars | {elapsed:.1f}s "
+                    f"| {rate*3600:.0f}/hr | ETA: {eta/3600:.1f}h"
+                )
+
+            if generated % REFRESH_EVERY == 0:
+                new_completed = get_completed_indices(token)
+                new_from_others = new_completed - completed
+                if new_from_others:
+                    print(f"  >> {len(new_from_others)} new completions from other workers")
+                completed = new_completed
+                report_stats(token, worker, len(completed), target)
+
+        except KeyboardInterrupt:
+            print("\nInterrupted by user")
+            break
+        except Exception as e:
+            errors += 1
+            print(f"[ERROR] idx={idx}: {e}")
+            if errors > 50:
+                print("Too many errors, stopping.")
+                break
+
+    # ── Final report ──────────────────────────────────────────────
+    elapsed_total = time.time() - batch_start
+    report_stats(token, worker, len(completed), target)
+
+    print(f"\n{'='*60}")
+    print(f"Worker:    {worker}")
+    print(f"Backend:   {args.backend} ({model_name})")
+    print(f"Generated: {generated}")
+    print(f"Errors:    {errors}")
+    print(f"Total:     {len(completed)}/{target} ({len(completed)/target*100:.1f}%)")
+    if elapsed_total > 0:
+        print(f"Rate:      {generated/elapsed_total*3600:.0f}/hr")
+    print(f"Time:      {elapsed_total/3600:.1f}h")
+    print(f"Output:    {output_path}")
+
+
+if __name__ == "__main__":
+    main()

worker/lem_generate.py

@@ -0,0 +1,348 @@
+#!/usr/bin/env python3
+"""
+LEM Gold Standard Generator — InfluxDB coordinated worker
+==========================================================
+Generates gold standard responses using axiom sandwich signing.
+Multiple workers can run in parallel — coordination via InfluxDB.
+
+Each worker:
+  1. Queries InfluxDB for completed indices
+  2. Picks the next uncompleted index
+  3. Generates the response (MLX on Apple Silicon)
+  4. Writes result to InfluxDB + local JSONL backup
+  5. Refreshes completed set periodically
+
+Usage:
+  python3 lem_generate.py                          # auto-detect everything
+  python3 lem_generate.py --worker m1-gpu0         # named worker
+  python3 lem_generate.py --model mlx-community/gemma-3-4b-it-qat-4bit  # smaller model
+  python3 lem_generate.py --dry-run                # show what would be generated
+  python3 lem_generate.py --limit 100              # generate N then stop
+"""
+
+import argparse
+import json
+import os
+import socket
+import sys
+import time
+import urllib.request
+import urllib.error
+from pathlib import Path
+
+# ── Paths (relative to this script) ─────────────────────────────────────
+
+SCRIPT_DIR = Path(__file__).parent
+DATA_DIR = SCRIPT_DIR / "data"
+OUTPUT_DIR = SCRIPT_DIR / "output"
+KERNEL_DIR = SCRIPT_DIR.parent / "kernel"
+
+PROMPTS_PATH = DATA_DIR / "gold-prompts.jsonl"
+AXIOMS_PATH = KERNEL_DIR / "axioms.json"
+KERNEL_PATH = KERNEL_DIR / "lek-1-kernel.txt"
+
+# ── Generation parameters ─────────────────────────────────────────────────
+
+MAX_PROMPTS = 15000
+MAX_TOKENS = 512
+TEMPERATURE = 0.3
+
+# ── InfluxDB ──────────────────────────────────────────────────────────────
+
+INFLUX_URL = os.environ.get("INFLUX_URL", "http://10.69.69.165:8181")
+INFLUX_DB = os.environ.get("INFLUX_DB", "training")
+INFLUX_TOKEN_PATH = Path.home() / ".influx_token"
+
+REFRESH_EVERY = 25
+
+
+def get_influx_token():
+    if tok := os.environ.get("INFLUX_TOKEN"):
+        return tok
+    if INFLUX_TOKEN_PATH.exists():
+        return INFLUX_TOKEN_PATH.read_text().strip()
+    print(f"Warning: no InfluxDB token found at {INFLUX_TOKEN_PATH} or INFLUX_TOKEN env")
+    return ""
+
+
+def influx_query(token, sql):
+    body = json.dumps({"db": INFLUX_DB, "q": sql}).encode()
+    req = urllib.request.Request(
+        f"{INFLUX_URL}/api/v3/query_sql",
+        data=body,
+        headers={
+            "Authorization": f"Bearer {token}",
+            "Content-Type": "application/json",
+        },
+    )
+    try:
+        with urllib.request.urlopen(req, timeout=10) as resp:
+            return json.loads(resp.read())
+    except (urllib.error.URLError, OSError) as e:
+        print(f"InfluxDB query error: {e}")
+        return []
+
+
+def influx_write(token, lines):
+    body = "\n".join(lines).encode()
+    req = urllib.request.Request(
+        f"{INFLUX_URL}/api/v3/write_lp?db={INFLUX_DB}",
+        data=body,
+        headers={
+            "Authorization": f"Bearer {token}",
+            "Content-Type": "text/plain",
+        },
+        method="POST",
+    )
+    try:
+        urllib.request.urlopen(req, timeout=10)
+        return True
+    except (urllib.error.URLError, OSError) as e:
+        print(f"InfluxDB write error: {e}")
+        return False
+
+
+def _escape_lp(s):
+    return s.replace(" ", "\\ ").replace(",", "\\,").replace("=", "\\=")
+
+
+def get_completed_indices(token):
+    rows = influx_query(token, "SELECT DISTINCT i FROM gold_gen")
+    return {int(r["i"]) for r in rows if r.get("i") is not None}
+
+
+def report_generation(token, worker, idx, seed, gen_time, response_chars):
+    domain = _escape_lp(seed.get("domain", "unknown"))
+    voice = _escape_lp(seed.get("voice", "unknown"))
+    safe_worker = _escape_lp(worker)
+    seed_id = seed.get("seed_id", f"P_{idx:05d}").replace('"', '\\"')
+
+    line = (
+        f'gold_gen,i={idx},w={safe_worker},d={domain},v={voice} '
+        f'seed_id="{seed_id}",gen_time={gen_time:.1f},'
+        f'chars={response_chars}i'
+    )
+    return influx_write(token, [line])
+
+
+def report_stats(token, worker, completed_count, target):
+    safe_worker = _escape_lp(worker)
+    pct = completed_count / target * 100 if target > 0 else 0
+    line = (
+        f"golden_gen_progress,worker={safe_worker} "
+        f"completed={completed_count}i,target={target}i,pct={pct:.1f}"
+    )
+    influx_write(token, [line])
+
+
+def load_prompts():
+    prompts = []
+    with open(PROMPTS_PATH) as f:
+        for line in f:
+            line = line.strip()
+            if line:
+                prompts.append(json.loads(line))
+    return prompts
+
+
+def load_axiom_context():
+    with open(AXIOMS_PATH) as f:
+        axioms = json.load(f)
+
+    system_text = "You are guided by the following axioms of conscious interaction:\n\n"
+    for ax in axioms["axioms"]:
+        system_text += f"Axiom {ax['id']} ({ax['name']}): {ax['statement']}\n\n"
+
+    with open(KERNEL_PATH) as f:
+        kernel_text = f.read().strip()
+
+    return system_text, kernel_text
+
+
+def generate_response(model, tokenizer, sampler, system_text, kernel_text, prompt):
+    from mlx_lm import generate
+
+    user_content = (
+        f"{prompt}\n\n---\n\n"
+        f"Consider this ethical framework in your response:\n{kernel_text}"
+    )
+
+    messages = [
+        {"role": "system", "content": system_text},
+        {"role": "user", "content": user_content},
+    ]
+
+    text = tokenizer.apply_chat_template(
+        messages, tokenize=False, add_generation_prompt=True
+    )
+
+    t0 = time.time()
+    response = generate(
+        model, tokenizer, prompt=text, max_tokens=MAX_TOKENS, sampler=sampler
+    )
+    elapsed = time.time() - t0
+
+    return response, elapsed
+
+
+def main():
+    parser = argparse.ArgumentParser(description="LEM Gold Generator (InfluxDB coordinated)")
+    parser.add_argument("--worker", default=None, help="Worker ID (default: hostname-pid)")
+    parser.add_argument("--influx", default=None, help="InfluxDB URL")
+    parser.add_argument("--model", default="mlx-community/gemma-3-12b-it-qat-4bit",
+                        help="MLX model ID")
+    parser.add_argument("--limit", type=int, default=0, help="Max generations (0=unlimited)")
+    parser.add_argument("--dry-run", action="store_true", help="Show plan without generating")
+    parser.add_argument("--output", default=None, help="JSONL output path (default: auto)")
+    args = parser.parse_args()
+
+    global INFLUX_URL
+    if args.influx:
+        INFLUX_URL = args.influx
+
+    worker = args.worker or f"{socket.gethostname()}-{os.getpid()}"
+
+    # ── Validate paths ─────────────────────────────────────────────
+    for path, desc in [(PROMPTS_PATH, "prompts"), (AXIOMS_PATH, "axioms"), (KERNEL_PATH, "kernel")]:
+        if not path.exists():
+            print(f"Error: {desc} not found at {path}")
+            sys.exit(1)
+
+    # ── Load token and check connectivity ─────────────────────────
+    token = get_influx_token()
+    if not token:
+        print("Error: no InfluxDB token available")
+        print("Place your token in ~/.influx_token or set INFLUX_TOKEN env var")
+        sys.exit(1)
+
+    test = influx_query(token, "SELECT 1 AS ok")
+    if not test:
+        print(f"Error: cannot reach InfluxDB at {INFLUX_URL}")
+        sys.exit(1)
+    print(f"InfluxDB connected: {INFLUX_URL}")
+
+    # ── Load prompts ──────────────────────────────────────────────
+    prompts = load_prompts()
+    target = min(MAX_PROMPTS, len(prompts))
+    print(f"Loaded {len(prompts)} prompts, targeting {target}")
+
+    # ── Query completed from InfluxDB ─────────────────────────────
+    completed = get_completed_indices(token)
+    remaining = [i for i in range(target) if i not in completed]
+    print(f"Completed: {len(completed)} | Remaining: {len(remaining)}")
+
+    if not remaining:
+        print("All target prompts already completed!")
+        return
+
+    if args.dry_run:
+        print(f"\n[DRY RUN] Would process {len(remaining)} prompts")
+        print(f"  First 10: {remaining[:10]}")
+        print(f"  Worker: {worker}")
+        print(f"  Model: {args.model}")
+        return
+
+    # ── Setup output ──────────────────────────────────────────────
+    OUTPUT_DIR.mkdir(parents=True, exist_ok=True)
+    output_path = Path(args.output) if args.output else OUTPUT_DIR / f"gold-{worker}.jsonl"
+    print(f"Output: {output_path}")
+
+    # ── Load model ────────────────────────────────────────────────
+    print(f"Loading model: {args.model}")
+    from mlx_lm import load
+    from mlx_lm.sample_utils import make_sampler
+
+    model, tokenizer = load(args.model)
+    sampler = make_sampler(temp=TEMPERATURE)
+    print("Model loaded.")
+
+    # ── Load axiom context ────────────────────────────────────────
+    system_text, kernel_text = load_axiom_context()
+    print(f"Axiom context: {len(system_text)} + {len(kernel_text)} chars")
+
+    # ── Generation loop ───────────────────────────────────────────
+    print(f"\nStarting generation as worker '{worker}'")
+    print(f"{'='*60}")
+
+    batch_start = time.time()
+    generated = 0
+    errors = 0
+    limit = args.limit if args.limit > 0 else len(remaining)
+
+    for idx in remaining:
+        if generated >= limit:
+            break
+
+        seed = prompts[idx]
+
+        try:
+            response, elapsed = generate_response(
+                model, tokenizer, sampler, system_text, kernel_text, seed["prompt"]
+            )
+
+            result = {
+                "idx": idx,
+                "seed_id": seed.get("seed_id", f"P_{idx:05d}"),
+                "domain": seed.get("domain", "unknown"),
+                "voice": seed.get("voice", "unknown"),
+                "prompt": seed["prompt"],
+                "response": response,
+                "gen_time": round(elapsed, 1),
+                "worker": worker,
+            }
+
+            with open(output_path, "a") as f:
+                f.write(json.dumps(result) + "\n")
+
+            report_generation(token, worker, idx, seed, elapsed, len(response))
+
+            generated += 1
+            completed.add(idx)
+
+            if generated % 10 == 0 or generated <= 5:
+                elapsed_total = time.time() - batch_start
+                rate = generated / elapsed_total if elapsed_total > 0 else 0
+                eta = (len(remaining) - generated) / rate if rate > 0 else 0
+                total_done = len(completed)
+                pct = total_done / target * 100
+                print(
+                    f"[{total_done}/{target} {pct:.1f}%] idx={idx} "
+                    f"| {len(response)} chars | {elapsed:.1f}s "
+                    f"| {rate*3600:.0f}/hr | ETA: {eta/3600:.1f}h"
+                )
+
+            if generated % REFRESH_EVERY == 0:
+                new_completed = get_completed_indices(token)
+                new_from_others = new_completed - completed
+                if new_from_others:
+                    print(f"  >> {len(new_from_others)} new completions from other workers")
+                completed = new_completed
+                report_stats(token, worker, len(completed), target)
+
+        except KeyboardInterrupt:
+            print("\nInterrupted by user")
+            break
+        except Exception as e:
+            errors += 1
+            print(f"[ERROR] idx={idx}: {e}")
+            if errors > 50:
+                print("Too many errors, stopping.")
+                break
+
+    # ── Final report ──────────────────────────────────────────────
+    elapsed_total = time.time() - batch_start
+    report_stats(token, worker, len(completed), target)
+
+    print(f"\n{'='*60}")
+    print(f"Worker:    {worker}")
+    print(f"Generated: {generated}")
+    print(f"Errors:    {errors}")
+    print(f"Total:     {len(completed)}/{target} ({len(completed)/target*100:.1f}%)")
+    if elapsed_total > 0:
+        print(f"Rate:      {generated/elapsed_total*3600:.0f}/hr")
+    print(f"Time:      {elapsed_total/3600:.1f}h")
+    print(f"Output:    {output_path}")
+
+
+if __name__ == "__main__":
+    main()

worker/requirements.txt

@@ -0,0 +1,2 @@
+mlx>=0.22.0
+mlx-lm>=0.22.1

worker/setup.sh

@@ -0,0 +1,103 @@
+#!/bin/bash
+set -e
+
+echo "=== LEM Worker Setup ==="
+echo ""
+
+# Check platform
+if [[ "$(uname -s)" != "Darwin" ]] || [[ "$(uname -m)" != "arm64" ]]; then
+    echo "Warning: MLX requires Apple Silicon (M1/M2/M3/M4)."
+    echo "For non-Apple hardware, use the --backend api option with llama.cpp or Ollama."
+    echo ""
+fi
+
+# Check Python
+if ! command -v python3 &>/dev/null; then
+    echo "Error: python3 not found. Install Python 3.9+."
+    exit 1
+fi
+
+PYVER=$(python3 -c "import sys; print(f'{sys.version_info.major}.{sys.version_info.minor}')")
+echo "Python: $PYVER"
+
+# Install dependencies
+echo ""
+echo "Installing Python dependencies..."
+pip3 install -r requirements.txt
+
+# Check InfluxDB token
+echo ""
+if [ -f "$HOME/.influx_token" ]; then
+    echo "InfluxDB token: found at ~/.influx_token"
+elif [ -n "$INFLUX_TOKEN" ]; then
+    echo "InfluxDB token: found in INFLUX_TOKEN env"
+else
+    echo "InfluxDB token: NOT FOUND"
+    echo ""
+    echo "  You need an InfluxDB token to coordinate with other workers."
+    echo "  Get it from the team and save it:"
+    echo ""
+    echo "    echo 'YOUR_TOKEN_HERE' > ~/.influx_token"
+    echo ""
+fi
+
+# Check InfluxDB connectivity
+echo ""
+INFLUX_URL="${INFLUX_URL:-http://10.69.69.165:8181}"
+echo -n "InfluxDB ($INFLUX_URL): "
+if python3 -c "
+import urllib.request, json, os
+from pathlib import Path
+token = os.environ.get('INFLUX_TOKEN', '')
+if not token:
+    tp = Path.home() / '.influx_token'
+    if tp.exists(): token = tp.read_text().strip()
+if not token:
+    print('SKIP (no token)')
+    exit(0)
+body = json.dumps({'db': 'training', 'q': 'SELECT 1 AS ok'}).encode()
+req = urllib.request.Request(
+    f'{os.environ.get(\"INFLUX_URL\", \"http://10.69.69.165:8181\")}/api/v3/query_sql',
+    data=body, headers={'Authorization': f'Bearer {token}', 'Content-Type': 'application/json'})
+urllib.request.urlopen(req, timeout=5)
+print('OK')
+" 2>/dev/null; then
+    :
+else
+    echo "UNREACHABLE"
+    echo "  Make sure you're on the lab network (VLAN 69) or have VPN access."
+fi
+
+# Check data files
+echo ""
+echo "Data files:"
+for f in data/gold-prompts.jsonl data/expansion-prompts.jsonl; do
+    if [ -f "$f" ]; then
+        lines=$(wc -l < "$f")
+        size=$(du -h "$f" | cut -f1)
+        echo "  $f: $lines prompts ($size)"
+    else
+        echo "  $f: NOT FOUND"
+    fi
+done
+
+# Summary
+echo ""
+echo "=== Setup Complete ==="
+echo ""
+echo "Quick start:"
+echo ""
+echo "  # Gold generation (finish the 15K golden set):"
+echo "  python3 lem_generate.py --worker $(hostname)-gold --dry-run"
+echo "  python3 lem_generate.py --worker $(hostname)-gold"
+echo ""
+echo "  # Expansion generation (46K+ prompts, needs trained LEM model):"
+echo "  python3 lem_expand.py --worker $(hostname)-expand --dry-run"
+echo "  python3 lem_expand.py --worker $(hostname)-expand"
+echo ""
+echo "  # Use a smaller model for limited RAM:"
+echo "  python3 lem_generate.py --model mlx-community/gemma-3-4b-it-qat-4bit"
+echo ""
+echo "  # Use API backend (llama.cpp, Ollama, etc.):"
+echo "  python3 lem_expand.py --backend api --api-url http://localhost:8080/v1"
+echo ""